How to Measure Windows for Custom Curtains in Sydney

If you’re considering custom curtains for your Sydney home, measuring your windows accurately is essential. Proper measurements ensure your curtains fit perfectly, enhancing both function and style. This guide will walk you through the process, step by step, so you can confidently measure your windows for custom curtains.

Why Custom Curtains?

Custom-made curtains offer a tailored fit that ready-made options simply can’t match. They can be designed to suit your specific window dimensions, ensuring a perfect fit. This is particularly important in Sydney, where homes often feature unique architectural styles and varied window sizes. Custom curtains also allow you to choose fabrics, colours, and designs that match your décor perfectly, creating a cohesive look in your living spaces.

Tools You’ll Need

Before you begin, gather the necessary tools:

  • Measuring tape (preferably metal for accuracy)
  • Pencil and paper
  • Step ladder (if your windows are high)
  • Helper (optional but recommended)

Measuring for Different Curtain Types

1. Standard Curtains

  • Width: Measure the width of the window. Include any window frame or trim. For a fuller look, add extra width (usually about 1.5 to 3 times the width of the window).
  • Length: Decide where you want your curtains to end. For floor-length curtains, measure from the top of the window frame to the floor. If you prefer them to puddle slightly, add a few extra inches.

2. Café Curtains

  • Width: Measure the width of the window. Add a bit extra for fullness.
  • Length: Measure from the midpoint of the window (where you want the curtains to start) to the bottom of the window.

3. Valances

  • Width: Measure the width of the window. Add extra width for fullness.
  • Length: Valances typically hang 12-18 inches down from the top of the window. Measure accordingly based on your preference.

Step-by-Step Measuring Guide

  1. Determine Mounting Style
    • Inside Mount: Curtains hang inside the window frame.
    • Outside Mount: Curtains cover the entire window and frame.

  2. Measure the Width
    • For the inside mount, measure the inside width of the window frame at the top, middle, and bottom. Use the smallest measurement.
    • For the outside mount, measure the width of the window including the frame. Add extra width based on your preference for coverage and fullness.

  3. Measure the Length
    • Inside mount: Measure from the top inside edge of the frame to the desired length.
    • Outside mount: Measure from the top of the frame (or above it) to the desired length. If mounting above the frame, decide how high above the window you want the rod to be. Add this to your length measurement.

  4. Add Allowances for Fullness and Hemming
    • For fullness, curtains should be 1.5 to 3 times the width of the window.
    • For hemming, add extra fabric to the length measurement (usually 2-4 inches).

Tips for Accurate Measurements

  • Double-Check Your Measurements: Accuracy is key, so measure twice to ensure your numbers are correct.
  • Note Irregularities: If your windows are not perfectly square, use the smallest measurement for width and length.
  • Consider Curtain Rods: The type and size of the curtain rod will affect your measurements. Ensure the rod you choose supports the width and weight of your curtains.
  • Account for Patterns: If your fabric has a pattern, ensure you have enough material to match the patterns at the seams.

Choosing the Right Fabric

When choosing fabric for your custom curtains in Sydney, consider both aesthetics and function. Here are some factors to keep in mind:

  • Light Control: Sheer fabrics let in light, while heavier fabrics block it out. Decide based on how much natural light you want.
  • Insulation: Thicker fabrics can help insulate your home, keeping it cooler in summer and warmer in winter.
  • Durability: Choose fabrics that are easy to clean and maintain, especially in high-traffic areas or homes with pets and children.

Hiring a Professional

If measuring and installing custom-made curtains seems daunting, consider hiring a professional. Many curtain installers in Sydney specialise in custom window treatments and offer in-home consultations. A professional can ensure accurate measurements and provide expert installation, saving you time and hassle.


Measuring your windows accurately is the first step to achieving the perfect window drapes for your Sydney home. By following these steps, you can ensure a tailored fit that enhances your home’s style and functionality. Whether you choose to measure and install the curtains yourself or hire a professional, the result will be beautifully dressed windows that complement your living spaces.

They are a worthwhile investment, offering a bespoke look that ready-made options can’t match. With careful measuring and consideration of fabric and style, you’ll create a stunning, cohesive look in your home.

Know more about the top custom-made curtain design trends in 2024 in our comprehensive guide.

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